dev: switch to eslint

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

.eslintrc.json

@@ -0,0 +1,23 @@
+{
+  "env": {
+    "node": true,
+    "es2021": true,
+    "jest/globals": true
+  },
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:jest/recommended",
+    "plugin:prettier/recommended"
+  ],
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "ecmaVersion": "latest",
+    "sourceType": "module"
+  },
+  "plugins": [
+    "@typescript-eslint",
+    "jest",
+    "prettier"
+  ]
+}

__tests__/docker.test.ts

@@ -6,6 +6,7 @@ import * as exec from '@actions/exec';
 process.env['RUNNER_TEMP'] = path.join(__dirname, 'runner');
 
 test('loginStandard calls exec', async () => {
+  // eslint-disable-next-line @typescript-eslint/ban-ts-comment
   // @ts-ignore
   const execSpy = jest.spyOn(exec, 'getExecOutput').mockImplementation(async () => {
     return {
@@ -15,9 +16,9 @@ test('loginStandard calls exec', async () => {
     };
   });
 
-  const username: string = 'dbowie';
-  const password: string = 'groundcontrol';
-  const registry: string = 'https://ghcr.io';
+  const username = 'dbowie';
+  const password = 'groundcontrol';
+  const registry = 'https://ghcr.io';
 
   await loginStandard(registry, username, password);
 
@@ -29,6 +30,7 @@ test('loginStandard calls exec', async () => {
 });
 
 test('logout calls exec', async () => {
+  // eslint-disable-next-line @typescript-eslint/ban-ts-comment
   // @ts-ignore
   const execSpy = jest.spyOn(exec, 'getExecOutput').mockImplementation(async () => {
     return {
@@ -38,7 +40,7 @@ test('logout calls exec', async () => {
     };
   });
 
-  const registry: string = 'https://ghcr.io';
+  const registry = 'https://ghcr.io';
 
   await logout(registry);
 

__tests__/main.test.ts

@@ -8,8 +8,7 @@ import * as stateHelper from '../src/state-helper';
 import * as core from '@actions/core';
 
 test('errors without username and password', async () => {
-  const platSpy = jest.spyOn(osm, 'platform').mockImplementation(() => 'linux');
-
+  jest.spyOn(osm, 'platform').mockImplementation(() => 'linux');
   process.env['INPUT_LOGOUT'] = 'true'; // default value
   const coreSpy = jest.spyOn(core, 'setFailed');
 
@@ -18,21 +17,21 @@ test('errors without username and password', async () => {
 });
 
 test('successful with username and password', async () => {
-  const platSpy = jest.spyOn(osm, 'platform').mockImplementation(() => 'linux');
+  jest.spyOn(osm, 'platform').mockImplementation(() => 'linux');
   const setRegistrySpy = jest.spyOn(stateHelper, 'setRegistry');
   const setLogoutSpy = jest.spyOn(stateHelper, 'setLogout');
   const dockerSpy = jest.spyOn(docker, 'login').mockImplementation(jest.fn());
 
-  const username: string = 'dbowie';
+  const username = 'dbowie';
   process.env[`INPUT_USERNAME`] = username;
 
-  const password: string = 'groundcontrol';
+  const password = 'groundcontrol';
   process.env[`INPUT_PASSWORD`] = password;
 
-  const ecr: string = 'auto';
+  const ecr = 'auto';
   process.env['INPUT_ECR'] = ecr;
 
-  const logout: boolean = false;
+  const logout = false;
   process.env['INPUT_LOGOUT'] = String(logout);
 
   await run();
@@ -43,25 +42,25 @@ test('successful with username and password', async () => {
 });
 
 test('calls docker login', async () => {
-  const platSpy = jest.spyOn(osm, 'platform').mockImplementation(() => 'linux');
+  jest.spyOn(osm, 'platform').mockImplementation(() => 'linux');
   const setRegistrySpy = jest.spyOn(stateHelper, 'setRegistry');
   const setLogoutSpy = jest.spyOn(stateHelper, 'setLogout');
   const dockerSpy = jest.spyOn(docker, 'login');
   dockerSpy.mockImplementation(jest.fn());
 
-  const username: string = 'dbowie';
+  const username = 'dbowie';
   process.env[`INPUT_USERNAME`] = username;
 
-  const password: string = 'groundcontrol';
+  const password = 'groundcontrol';
   process.env[`INPUT_PASSWORD`] = password;
 
-  const registry: string = 'ghcr.io';
+  const registry = 'ghcr.io';
   process.env[`INPUT_REGISTRY`] = registry;
 
-  const ecr: string = 'auto';
+  const ecr = 'auto';
   process.env['INPUT_ECR'] = ecr;
 
-  const logout: boolean = true;
+  const logout = true;
   process.env['INPUT_LOGOUT'] = String(logout);
 
   await run();

dev.Dockerfile

@@ -57,10 +57,10 @@ RUN --mount=type=bind,target=.,rw \
 FROM scratch AS format-update
 COPY --from=format /out /
 
-FROM deps AS format-validate
+FROM deps AS lint
 RUN --mount=type=bind,target=.,rw \
   --mount=type=cache,target=/src/node_modules \
-  yarn run format-check
+  yarn run lint
 
 FROM docker:${DOCKER_VERSION} as docker
 FROM docker/buildx-bin:${BUILDX_VERSION} as buildx

docker-bake.hcl

@@ -7,7 +7,7 @@ group "pre-checkin" {
 }
 
 group "validate" {
-  targets = ["format-validate", "build-validate", "vendor-validate"]
+  targets = ["lint", "build-validate", "vendor-validate"]
 }
 
 target "build" {
@@ -28,9 +28,9 @@ target "format" {
   output = ["."]
 }
 
-target "format-validate" {
+target "lint" {
   dockerfile = "dev.Dockerfile"
-  target = "format-validate"
+  target = "lint"
   output = ["type=cacheonly"]
 }
 

jest.config.ts

@@ -6,5 +6,5 @@ module.exports = {
   transform: {
     '^.+\\.ts$': 'ts-jest'
   },
-  verbose: false
+  verbose: true
 }

package.json

@@ -3,11 +3,11 @@
   "description": "GitHub Action to login against a Docker registry",
   "main": "lib/main.js",
   "scripts": {
-    "build": "tsc && ncc build",
-    "format": "prettier --write '**/*.ts'",
-    "format-check": "prettier --check '**/*.ts'",
+    "build": "ncc build src/main.ts --source-map --minify --license licenses.txt",
+    "lint": "eslint src/**/*.ts __tests__/**/*.ts",
+    "format": "eslint --fix src/**/*.ts __tests__/**/*.ts",
     "test": "jest --coverage",
-    "pre-checkin": "yarn run format && yarn run build"
+    "all": "yarn run build && yarn run format && yarn test"
   },
   "repository": {
     "type": "git",
@@ -37,11 +37,18 @@
   },
   "devDependencies": {
     "@types/node": "^16.11.26",
+    "@typescript-eslint/eslint-plugin": "^5.14.0",
+    "@typescript-eslint/parser": "^5.14.0",
     "@vercel/ncc": "^0.33.3",
     "dotenv": "^16.0.0",
+    "eslint": "^8.11.0",
+    "eslint-config-prettier": "^8.5.0",
+    "eslint-plugin-jest": "^26.1.1",
+    "eslint-plugin-prettier": "^4.0.0",
     "jest": "^27.2.5",
-    "prettier": "^2.5.1",
+    "prettier": "^2.3.1",
     "ts-jest": "^27.1.2",
+    "ts-node": "^10.7.0",
     "typescript": "^4.4.4"
   }
 }

src/aws.ts

@@ -34,7 +34,7 @@ export const getAccountIDs = (registry: string): string[] => {
   if (!matches) {
     return [];
   }
-  let accountIDs: Array<string> = [matches[2]];
+  const accountIDs: Array<string> = [matches[2]];
   if (process.env.AWS_ACCOUNT_IDS) {
     accountIDs.push(...process.env.AWS_ACCOUNT_IDS.split(','));
   }
@@ -57,14 +57,14 @@ export const getRegistriesData = async (registry: string, username?: string, pas
     authTokenRequest['registryIds'] = accountIDs;
   }
 
-  let httpProxyAgent: any = null;
+  let httpProxyAgent;
   const httpProxy = process.env.http_proxy || process.env.HTTP_PROXY || '';
   if (httpProxy) {
     core.debug(`Using http proxy ${httpProxy}`);
     httpProxyAgent = new HttpProxyAgent(httpProxy);
   }
 
-  let httpsProxyAgent: any = null;
+  let httpsProxyAgent;
   const httpsProxy = process.env.https_proxy || process.env.HTTPS_PROXY || '';
   if (httpsProxy) {
     core.debug(`Using https proxy ${httpsProxy}`);

src/docker.ts

@@ -27,7 +27,7 @@ export async function loginStandard(registry: string, username: string, password
     throw new Error('Username and password required');
   }
 
-  let loginArgs: Array<string> = ['login', '--password-stdin'];
+  const loginArgs: Array<string> = ['login', '--password-stdin'];
   loginArgs.push('--username', username);
   loginArgs.push(registry);
 

src/main.ts

@@ -9,7 +9,7 @@ export async function run(): Promise<void> {
     stateHelper.setRegistry(input.registry);
     stateHelper.setLogout(input.logout);
     await docker.login(input.registry, input.username, input.password, input.ecr);
-  } catch (error: any) {
+  } catch (error) {
     core.setFailed(error.message);
   }
 }

tsconfig.json

@@ -1,14 +1,19 @@
 {
   "compilerOptions": {
-    "target": "esnext",
+    "target": "es6",
     "module": "commonjs",
     "newLine": "lf",
     "outDir": "./lib",
     "rootDir": "./src",
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
     "strict": true,
     "noImplicitAny": false,
-    "esModuleInterop": true,
-    "sourceMap": true
+    "useUnknownInCatchVariables": false,
   },
-  "exclude": ["node_modules", "**/*.test.ts"]
+  "exclude": [
+    "node_modules",
+    "**/*.test.ts",
+    "jest.config.ts"
+  ]
 }